Hand-brake for cars.



A.'L. McCALLUM. HAND BRAKE FOR CABS. APPLlCATlON FILED MAY 1.19I6.

Patented May 7,1918.

z z INVENTOR.

BY 4 K W 4%TORNEYS.

ALBERT MCCALLUM, or SPOKANE, WASHINGTON.

HAND-BRAKE ron cA'ns.

Specification of Letters, Patent.

To all who-m z'timag concern:

Be iti known that ALBERT: L. MGGALLUM,

a citizen of the United States of America,

residing'at Spokane; inthe countyofSpokane and State ofWas'h'ington,hasin'vented improved COIHLQCiZlOlFbGtWQGH illie" brake and the meansfor operating the same: to pro-- vide a connection whereby the means foroperating the same may be set at different locations on the top of thecar body and at other places on the car where desired instead of beingarbitrarily placed at one loca tion, such as at the end of the car.

A further object is to provide an improved method for operating thebrakes. Other and further objects and purposes .will be disclosed by thedetail description hereinafter given and by the accompanying drawingsforming a part of the specification in which Figure 1, is a broken-awayside elevation of a box car equipped with my improved brake, 4

Fig. 2 is a vertical sectional view taken 011 the line 2 2 of Fig. 3,

Fig. 3, is a bottom view with my improved brake,

Fig. 4, is a broken-away front view of the mechanism for operating thebrake, showing a manner of connecting the same With a car body and witha brake chain or cable,

Fig. 5, is a side view of the same, and

Fig. 6, is a broken-away rear View of the mechanism for operating thebrake.

It is understood that my invention is applicable to boX, coal, flat andany and all cars and to all cars used in interstate commerce.

In the accompanying drawings I have shown my invention made applicableto a box car.

In a detail description in which like numerals refer to like partsthroughout the several views, a rack 10 is shown secured of a carequipped to the top 11 of the car body 12 by means of U bolts 13engaging the cross beams 14 of the car body 12 and being secured to thebase 15 of the rack 10. Pivotally mounted on the rack 10, as at 16, is asegment 17, oppositely disposed to which is a lever 18, the two elements17 and 18 being integral and being adapted to rotate on the pivot 16. In

the periphery of the segment 17 is groove- 18atone end ofwh-ichisa'hook19. Mount ed onthe'lever 18 is a gravity pawl 39' adaptedto engage the curved ratchet 20 of the rack 10.. The lever 18 is dividedinto" two portions 18 and 18 connected by a hinge 21 at one side thereofso 1 that in forcing the lever 18 in misdirection thelever WilLrem'ainrigid and in forcing thesaine-in the opposite direction the same willfold at the 'hi-n'ge2 li Theimproved brake mechanism in no way disturbsthe under-car mechanism beyond the attachment of the floating beam22which has the usual rod connection 23 reaching to and connectediwiththe brake lever 24, by the operation of which the brake shoes 25 are setagainst the Wheels 26. Inasmuch as the car-brake construction shownembodies an air-brake, it is well to state that the piston rod 38 has afree action in the cylinder 27 and therefore will not interfere withthefree action of the beam 22 in connection with the handbrake hereindescribed.

Mounted on the end of the beam 22, attached to the support 28 andsecured to the body 12 of the car at 29, 30 and 31 are sheaves 32, 33,34, 35 and 36. Attached to the support 28 is one end of a chain 37, thechain 37 engaging the sheaves-32, 33, 34., 35 and 36, the groove 18 inthe segment 17 and being attached at its opposite end to the catch 19.By the connections shown between the lever 18 and the floating beam 22,

PatentedMay 7 1918 i of the arrow (Fig. 4) will operate the beam 22 toset the brake-shoes 25 against the wheels 26. The gravity pawl 39engages the ratchet 20 and holds the brake until manually released. Thefold-over character of the lever 18 is for the purpose of lowering theobstruction of the brake-operating mechanism in passing through subways,under wires, etc. 1

WVhile I have shown one specific form of my invention and only oneapplication thereof, it is to be understood that I reserve the right tovary the details thereof and to make such varying applications thereofas are within the scope of the invention and covered by the claims. Forinstance, a cable might be substituted for the chain 37 and chain orcable adjusted and so placed that the beam may be operated to set andrelease the brake-shoes 25 with like effect as shown and hereinillustrated and described.

Vhat is claimed is,

1. A hand brake mechanism for cars, adapted for independent action andC0111- bined with an air-brake mechanism, comprising a brake lever, rackand pawl mount-- ed on the car body, a floating beam underneath the carbody adjacent the car trucks and connected with brake shoes, sheavesseparately attached to the car body and to the floating beam and a cableconnected at one end with said lever, passed over said sheaves andconnected at the other end with the bottom of the car body.

2. A hand brake mechanism for cars,

adapted for independent action and combined with an air-brake mechanism,comprising a brake lever, rack and pawl mounted on the car body asegment attached to the lever, a floating beam underneath the car bodyadjacent the car trucks and connected with the brake shoes, sheavesseparately attached to the car body and to the floating beam and a cableconnected at one end with said segment, passed over said sheaves andconnected at its other end with the bottom of the car body.

In testimony whereof I afiix my signature in presence of two witnesses.

ALBERT L. MCOALLUM. Witnesses:

H. M. WILEY, L. L. W'Es'rFALL.

copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. 0.

